Two-loop electroweak corrections to Higgs production at hadron colliders

By Giuseppe Degrassi, Fabio Maltoni. 2004

171 citations recorded by the source corpus.

Abstract We compute the two-loop electroweak corrections due to the top quark to the gluon fusion production cross section of an intermediate-mass Higgs boson. This result, together with the previously known contribution due to the light fermions, allows a complete determination of the two-loop electroweak corrections to this production cross section. For Higgs mass values above 120 GeV the top corrections have opposite sign of the light fermions contribution, however they are always smaller in size reaching at most 15% of the latter. The total electroweak corrections to the gluon fusion production cross section for 115 GeV ≲ m H ≲ 2 m W range from 5% to 8% of the lowest order term.

Subfields: Artificial Intelligence, Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/6a2914a3b600bd5139e2e2e08883190d1470c299

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Citations in the corpus

Finite top mass effects for hadronic Higgs production at next-to-next-to-leading order (2009, background): “Apart from these pure QCD corrections, also the leading electro-weak effects have been evaluated [19, 20, 21, 22], and an estimate of the mixed electro-weak/QCD corrections is available [12] as well.”
Transverse-momentum resummation: Higgs boson production at the Tevatron and the LHC (2011, background): “The above exclusion relies on accurate theoretical predictions [7, 8] for the inclusive gg → H cross section, which is now known up to next-to-next-to-leading order (NNLO) [9– 11], with the inclusion of soft-gluon contributions up to next-to-next-to-leading logarithmic accuracy (NNLL) [12], and two-”
Mixed QCD-electroweak corrections to Higgs boson production in gluon fusion (2008, background): “We note that the 2-loop light-quark contribution has a cut first at p(2)H = M 2 W,Z because of helicity flow along the internal quark line [27], indicating that the radius of convergence of the expansion is MH < MW,Z .”
Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (2011, unknown): “[32, 33, 163, 164, 263, 264], improved with the NNLO corrections [11–16].”
Dark Matter through the Higgs portal (2019, methodology): “The electroweak corrections have been computed at NLO in the infinite loop mass limit mt,MV MH [312,313,609] and exactly [610,611].”